Multiphase pump with sequential jets

Abstract

Pumping device for effecting direct energy exchange between a drive fluid and a primary fluid. The device has, in combination, a hollow static part allowing the drive fluid to pass, which static hollow part has at least one orifice and a distributing part having at least one opening the distributing part is located relative to the static hollow part to allow the drive fluid to pass from an orifice to an orifice, the distributing parts and the static part are joined by a connecting and sealing part, and a movable part is disposed in the space formed by the static hollow part, the distributing part, and the connecting part. The movable part has at least one means allowing orifices to be blocked, so that at least part of said drive fluid is ejected toward the primary fluid when the movable part rotates.

I claim: 
     
       1. A pumping device employing direct energy exchange between a drive fluid and a primary fluid circulating through a pipe, said pumping device being located within said pipe and comprising, in combination, a static hollow part allowing said drive fluid to pass into said pipe, said static hollow part having at at least one of its ends at least one first orifice, a distributing part having at least two second orifices, said distributing part being situated with respect to the static hollow part such as to allow the drive fluid to pass from the at least one first orifice to at least one second orifice and into the primary fluid, with the distributing part and the static hollow part being joined to each other by a connecting and sealing part, a common meeting space being defined by the distribution part, the connecting and sealing part and the pipe in which the primary fluid circulates wherein the primary fluid and the drive fluid meet, a movable part disposed in a space formed by the static hollow part, the distributing part, and the connecting and sealing part, said movable part having at least one means for blocking at least one of said second orifices such that at least part of said drive fluid is ejected into the primary fluid at said meeting space in the form of liquid pistons when the movable part rotates. 
     
     
       2. A device according to claim 1 wherein said movable part is a turbine made to rotate by passage of the drive fluid. 
     
     
       3. A device according to claim 2 wherein the number of first orifices located in the static hollow part is equal to the number of second orifices located in the distributing part. 
     
     
       4. A device according to claim 1 further comprising a part located in an extension of the distributing part and aligned with the distributing part with the aid of means for defining flow channels, the part located in the extension having at least one opening creating a mixing channel. 
     
     
       5. A device according to claim 1 wherein the movable part is an action turbine caused to rotate by passage of the drive fluid. 
     
     
       6. Device according to claim 1 characterized in that movable part is a reaction turbine caused to rotate by the drive fluid. 
     
     
       7. Device according to claim 1 characterized in that orifices of distributing part are composed of a single circular slot and blocking means of the slot are composed of a slide designed to allow passage of the drive fluid jets over a given width. 
     
     
       8. A device according to claim 3, wherein the distributing part is extended by a part which comprises an elongated portion that extends within said pipe to create one or more mixing channels for the drive fluid and the primary fluid. 
     
     
       9. A device according to claim 1 allowing energy to be communicated from a drive fluid to a primary fluid such as a multiphase fluid containing solid particles and/or a fluid having high viscosity wherein said primary fluid comprises a multiphase liquid containing solid particles and said drive fluid comprises a pressurized liquid, said multiphase liquid admixinq with said drive liquid within said pipe. 
     
     
       10. A device according to claim 1 wherein said primary fluid is a petroleum fluid and said pipe is connected to a source of said petroleum fluid and said drive fluid is a pressurized liquid coming from an external source. 
     
     
       11. Device according to claim 2 characterized in that the movable part is an action turbine caused to rotate by the drive fluid. 
     
     
       12. Device according to claim 2 characterized in that the movable part is a reaction turbine caused to rotate by the drive fluid.